1. 1.25 moles of NOCl were placed in a 2.50 L reactionchamber at 427ºC. After equilibrium was reached, 1.10 moles of NOCl remained. Calculate the equilibriumconstant, Kc, for the reaction 2NOCl(g) ? 2NO(g) + Cl2(g).
2. Hydrogen iodide decomposes according to the equation2HI(g) ? H2(g) + I2(g), for which Kc = 0.0156 at 400ºC. 0.550 mol HI was injected into a 2.00 Lreaction vessel at 400ºC. Calculate the concentration of HI at equilibrium.